body {
    margin: 1rem;
}
  
.grille {
    margin: 2rem auto;
    border-collapse: collapse;
}

th, td {
    width: 30px;
    height: 30px;
    text-align: center;
}

td {
    border: 1px solid black;
}

.case.noire {
    background-color: black;
}

.definitions {
    display: flex;
    justify-content: space-evenly;
}

.definitions h2 {
    font-variant-caps: petite-caps;
}